Home / 120,082.77-180,124.29-31,336.20

Finding the Fourth Proportional to 120,082.77, 180,124.29 and 31,336.20

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Solution

The fourth proportional to 120,082.77, 180,124.29 and 31,336.20 is: 47,004.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,082.77 : 180,124.29 = 31,336.20 : x
  2. Step 2: Convert to fraction form
    120,082.77/180,124.29 = 31,336.20/x
  3. Step 3: Cross multiply
    120,082.77x = 180,124.29 × 31,336.20
  4. Step 4: Simplify right side
    120,082.77x = 5,644,410,776.30
  5. Step 5: Solve for x
    x = 5,644,410,776.30/120,082.77
  6. Step 6: Final answer
    x = 47,004.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.